The new Aero XS roof rack system for a 2004 Nissan Frontier. This roof rack system fits a Nissan Frontier with a bare roof. The 51 inch XB130 crossbar, the 51 inch XB130 crossbar and INXS251 rack feet are black, the crossbar endcaps are black with chrome trim. The XS is a sleek aerodynamic rack package, that looks great. XS rack systems are easy to assemble and most are no tool installations (sometimes an allen wrench is required and will be included). On the 2004 Nissan Frontier the bar spread is: 28 inches and the load capacity is: 140lbs. Manufacturer's part numbers: (Qty 1: XS250), (Qty 2: XB130), (Qty 1: K170)